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docs: assembly, add information about steppers and their wiring

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Romain Bazile 2021-03-11 12:42:17 +01:00
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docs/assembly_guide.md
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@ -138,6 +138,13 @@ Your setup should look like this. Don't worry about the wiring, we'll have a loo
You will now want to wire the steppers and pump to the terminals on the motor driver board.
!!! info
The PlanktoScope **uses only bipolar stepper motors** (with 4 wires coming out, and two coils inside), so you need to identify the two wires working together for each coil. The [RepRap Wiki has great information](https://reprap.org/wiki/Stepper_wiring#.22pair.22_wires_on_4_wire_motors) on how to do this, either with a multimeter or without.
You can find more information about stepper motors and how they work in this [document](http://resources.linengineering.com/acton/attachment/3791/f-00ca/1/-/-/-/-/Stepper%20Motor%20Basics.pdf).
!!! tip
If your wires are too short, you can invert the pump and the focus wiring. However, you will have to remember to change the configuration later on.
!!! tip